Car Will Not Start problems of the 2008 Chevrolet Impala

Tl the contact called on behalf of the owner of a 2008 Chevrolet Impala. On several occasions, the vehicle failed to start and the reduced power warning indicator illuminated. Additionally, while driving 55 mph, the vehicle stalled. The contact was unable to restart the vehicle. The contact stated that the failure was intermittent. The vehicle was diagnosed by an independent mechanic and fault code: p-2135 was retrieved. The mechanic replaced the ecm, throttle body, accelerator pedal mechanism, and the wiring harness between the ecm and throttle body; however, the failure recurred. The dealer and manufacturer were not contacted. The approximate failure mileage was 80,000.

The contact owns a 2008 Chevrolet Impala. While driving 45 mph, the vehicle stalled and the warning indicators illuminated on the instrument panel. The vehicle did not restart. The dealer was contacted, but the vehicle was not diagnosed. The manufacturer was not notified. The failure mileage was 77,120.

The contact owns a 2008 Chevrolet Impala. The contact received a notification of NHTSA campaign number: 14v355000 (electrical system) however, the recall remedy failed to repair the vehicle. After the vehicle was serviced under the recall repair, the vehicle failed to start. The manufacturer was not made aware of the failure. The failure mileage was unknown.

The contact owns a 2008 Chevrolet Impala. The contact stated that the vehicle failed to start and the steering wheel would not lock. The vehicle was included in NHTSA campaign number: 14v355000 (electrical system); however, the part needed to repair the vehicle was unavailable. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The VIN was unavailable. The approximate failure mileage was 135,463.

When driving through st. Louis around midnight on I-270 on may 3, the "engine power is reduced" message came on and the car slowed dramatically right in the middle lane of the interstate. Quite scary indeed, not to mention the lurching. After being nearly run over on both sides, I pulled off in a very dark part of town and the police came by to check on me. Initially the car wouldn't start with the message, "starting is disabled, service throttle. " after about an hour, the thing allowed me to start it, but still with the "power is reduced" message. I actually drove that thing home (over 90 miles) with semis bearing down on me, alternating flashers and watching over my shoulder. Anyway, the next day, it still wouldn't run normally, but I limped over to an autozone and I replaced the throttle assembly and the throttle body (the engine code said p0651, but that was a waste of $300). No help, same message. I let the car sit. When it first started up, still had the message. But about 5 minutes later, the car started normally!!! the check engine light is on now, but those codes haven't been accurate so far. While the car was running normally, I went out and jiggled all the wiring both under the dash and above the throttle, but could not find a loose wire or get the car to shift into the "engine power reduced" message. I also tapped on and jiggled the air box (because I was told that's where the ecm is located). Still couldn't get it to go bad. Came back out the next time and the car had the "engine power is reduced" message and running horribly. I was fortunate not to be killed, these cars are moving chicanes. I am totally at a loss as to what is going on. Gm service reps say "go to the dealer" but online shows this only results in a bunch of expensive replaced parts that didn't fix the problem. I only suffered a backache but this car is an accident waiting to happen.